Opinions from M. C. Langer 2004
- 'Agnosphitys is a nomen dubium'
- 'Agnosphitys cromhallensis is a nomen dubium'
- 'Aliwalia belongs to Dinosauria'
- 'Aliwalia rex belongs to Aliwalia'
- 'Alwalkeria belongs to Saurischia'
- 'Caseosaurus is a subjective synonym of Chindesaurus'
- 'Caseosaurus crosbyensis is a subjective synonym of Chindesaurus bryansmalli'
- 'Chindesaurus belongs to Saurischia'
- 'Chindesaurus bryansmalli belongs to Chindesaurus'
- 'Eoraptor belongs to Saurischia'
- 'Eoraptor lunensis belongs to Eoraptor'
- 'Eusaurischia belongs to Saurischia'
- 'Frenguellisaurus is a subjective synonym of Herrerasaurus'
- 'Frenguellisaurus ischigualastensis is a subjective synonym of Herrerasaurus ischigualastensis'
- 'Guaibasaurus belongs to Eusaurischia'
- 'Guaibasaurus candelariensis belongs to Guaibasaurus'
- 'Herrerasauridae belongs to Saurischia'
- 'Herrerasaurus belongs to Herrerasauridae'
- 'Herrerasaurus ischigualastensis belongs to Herrerasaurus'
- 'Ischisaurus is a subjective synonym of Herrerasaurus'
- 'Ischisaurus cattoi is a subjective synonym of Herrerasaurus ischigualastensis'
- 'Saltopus belongs to Dinosauria'
- 'Saltopus elginensis belongs to Saltopus'
- 'Saturnalia belongs to Eusaurischia'
- 'Saturnalia tupiniquim belongs to Saturnalia'
- 'Saurischia was reranked as a unranked clade and belongs to Dinosauria'
- 'Sauropodomorpha was reranked as a unranked clade and belongs to Eusaurischia'
- 'Spondylosoma belongs to Dinosauria'
- 'Spondylosoma absconditum belongs to Spondylosoma'
- 'Staurikosaurus belongs to Herrerasauridae'
- 'Staurikosaurus pricei belongs to Staurikosaurus'
- 'Teyuwasu is a nomen dubium'
- 'Teyuwasu barberenai belongs to Teyuwasu' according to Kischlat 1999
- 'Teyuwasu barberenai is a nomen dubium'
- 'Thecospondylus is a nomen dubium'
- 'Thecospondylus horneri is a nomen dubium'
- 'Theropoda was reranked as a unranked clade and belongs to Eusaurischia'
- 'Walkeria is replaced by Alwalkeria'
- 'Walkeria maleriensis is recombined as Alwalkeria maleriensis'